//: C23:Nonlocal.cpp
// From Thinking in C++, 2nd Edition
// Available at http://www.BruceEckel.com
// (c) Bruce Eckel 1999
// Copyright notice in Copyright.txt
// setjmp() & longjmp()
#include <iostream>
#include <csetjmp>
using namespace std;

class Rainbow
{
public:
    Rainbow() {
        cout << "Rainbow()" << endl;
    }
    ~Rainbow() {
        cout << "~Rainbow()" << endl;
    }
};

jmp_buf kansas;

void oz()
{
    Rainbow rb;
    for (int i = 0; i < 3; i++)
        cout << "there's no place like home\n";
    longjmp(kansas, 47);
}

int main()
{
    if (setjmp(kansas) == 0) {
        cout << "tornado, witch, munchkins...\n";
        oz();
    } else {
        cout << "Auntie Em! "
             << "I had the strangest dream..."
             << endl;
    }
} ///:~
